"Gotten super conservative" is underselling it a bit.

It's more like that neighbour that had all kinds of problems has suddenly flipped out. They locked one of the kids in the shed, and it sounds like the kid is still trapped there. They took the doors off the other kids' rooms so that they had no privacy because the Internet told them kids are dressing up as furries and peeing in kitty litter. They've stopped paying their bills and chased a meter reader off with a shotgun. They've started trying to rip the copper out of the walls to sell it online.

You'd call the cops on them, but the neighbour is a cop, so there's not much you can do. That's why you had to choose your words carefully when the neighbour dropped by with a gun on his hip saying the property line was drawn wrong and your house was actually on their property: and you could see that the new property line was just drawn in with a sharpie.